Simplify skill level and reduce ELO

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index da306a1a6150a487b3f6a734375e12023fd55862..3c32c4bb762a45ee1ae35f14a02aa119ff654418 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -831,7 +831,8 @@ moves_loop: // When in check and at SpNode search starts from here
       newDepth = depth - ONE_PLY + extension;
 
       // Step 13. Pruning at shallow depth
-      if (   !captureOrPromotion
+      if (   !RootNode
+          && !captureOrPromotion
           && !inCheck
           && !dangerous
           &&  bestValue > VALUE_MATED_IN_MAX_PLY)
@@ -1392,10 +1393,6 @@ moves_loop: // When in check and at SpNode search starts from here
     {
         int score = RootMoves[i].score;
 
-        // Don't allow crazy blunders even at very low skills
-        if (i > 0 && RootMoves[i - 1].score > score + 2 * PawnValueMg)
-            break;
-
         // This is our magic formula
         score += (  weakness * int(RootMoves[0].score - score)
                   + variance * (rng.rand<unsigned>() % weakness)) / 128;